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In 1925, George Uhlenbank and Samuel Gautamist proposed the presence of a fourth quantum number, which is called?
It is called Electron-spin quantum number
It is called Electron-spin quantum number
See lessWhat is called Krashanika?
Bodies which absorb and emit radiation of high frequency.
Bodies which absorb and emit radiation of high frequency.
See lessWho first presented the atomic theory of matter on a scientific basis?
In 1793, John Dalton went to Manchester to teach mathematics, physics and chemistry in a college. There he spent most of his life in teaching and research. In 1808, he presented his atomic theory, which proved to be an important theory for the study of substances.
In 1793, John Dalton went to Manchester to teach mathematics, physics and chemistry in a college. There he spent most of his life in teaching and research. In 1808, he presented his atomic theory, which proved to be an important theory for the study of substances.
See lessFrom which language does the word atom originate?
The Greeks called these particles atoms, meaning indivisible, and the modern word "atom" is derived from this word. Democritus proposed that different types and combinations of these particles were responsible for different forms of matter.
The Greeks called these particles atoms, meaning indivisible, and the modern word “atom” is derived from this word. Democritus proposed that different types and combinations of these particles were responsible for different forms of matter.
See lessThe word stoichiometry is made up of two words of which language?
The quantitative relationship between reactants and products is called stoichiometry. The term stoichiometry is derived from two Greek words: stoichion (meaning "element") and metron (meaning "measurement").
The quantitative relationship between reactants and products is called stoichiometry. The term stoichiometry is derived from two Greek words: stoichion (meaning “element”) and metron (meaning “measurement”).
See lessWho put forward the idea that the ratio of masses of elements in a compound is always the same?
Joseph Proust Explanation : Proust had expressed this law in this way, “The elements in any compound are always present in the ratio of definite masses”.
Joseph Proust
Explanation :
See lessProust had expressed this law in this way, “The elements in any compound are always present in the ratio of definite masses”.
Who said that light waves are related to oscillating electrical and magnetic behaviour?
Maxwell showed for the first time that light waves are related to oscillating electric and magnetic behavior.
Maxwell showed for the first time that light waves are related to oscillating electric and magnetic behavior.
See lessAccording to which rule are electrons filled in the orbitals of different atoms?
Aufbah’s Rule Explanation : Key Features of the Aufbau PrincipleAccording to the Aufbau principle, electrons first occupy the lowest energy orbitals. This indicates that electrons enter higher-energy orbitals only when the lower-energy orbitals are completely occupied.
Aufbah’s Rule
Explanation :
See lessKey Features of the Aufbau PrincipleAccording to the Aufbau principle, electrons first occupy the lowest energy orbitals. This indicates that electrons enter higher-energy orbitals only when the lower-energy orbitals are completely occupied.
The square of the wave function at a point shows the probability of electron density at that point. Who said this?
Born's law states that the probability density of finding a particle at a particular state is proportional to the square of the modulus of the wave function at that point.
Born’s law states that the probability density of finding a particle at a particular state is proportional to the square of the modulus of the wave function at that point.
See lessWhat is the science developed keeping in mind the dual behaviour of matter called?
Quantum mechanics was developed keeping in mind the dual behavior of matter. Quantum mechanics is a theoretical science, in which the motions of those microscopic objects are studied, which show the properties of both waves and particles. It determines the laws of motion of such objects.
Quantum mechanics was developed keeping in mind the dual behavior of matter. Quantum mechanics is a theoretical science, in which the motions of those microscopic objects are studied, which show the properties of both waves and particles. It determines the laws of motion of such objects.
See less